Broken or risky cryptographic algorithm in F5 BIG-IP
Priority LOW 27CWE-327Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-327.
Summary
On BIG-IP 11.5.1-11.5.4, 11.6.1, and 12.1.0, a virtual server configured with a Client SSL profile may be vulnerable to a chosen ciphertext attack against CBC ciphers. When exploited, this may result in plaintext recovery of encrypted messages through a man-in-the-middle (MITM) attack, despite the attacker not having gained access to the server's private key itself. (CVE-2019-6593 also known as Zombie POODLE and GOLDENDOODLE.)
Why it matters now
EPSS 0.00653 51st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| F5 | BIG-IP (LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, FPS, GTM, Link Controller, PEM, WebAccelerator) | 11.5.1-11.5.4, 11.6.1, 12.1.0 | — | No fix listed | CNA |
- BIG-IP (LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, FPS, GTM, Link Controller, PEM, WebAccelerator) VendorF5 Affected 11.5.1-11.5.4, 11.6.1, 12.1.0 Fixed in — No fix listed CNA
CPE configurations NVD · 36
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* | 11.5.1 – 11.5.4 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_access_policy_manager:11.6.1:*:*:*:*:*:*:* | 11.6.1 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_access_policy_manager:12.1.0:*:*:*:*:*:*:* | 12.1.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* | 11.5.1 – 11.5.4 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_local_traffic_manager:11.6.1:*:*:*:*:*:*:* | 11.6.1 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_local_traffic_manager:12.1.0:*:*:*:*:*:*:* | 12.1.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* | 11.5.1 – 11.5.4 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_advanced_firewall_manager:11.6.1:*:*:*:*:*:*:* | 11.6.1 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_advanced_firewall_manager:12.1.0:*:*:*:*:*:*:* | 12.1.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* | 11.5.1 – 11.5.4 | Vulnerable | F5 |
- cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* Versions 11.5.1 – 11.5.4 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_access_policy_manager:11.6.1:*:*:*:*:*:*:* Versions 11.6.1 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_access_policy_manager:12.1.0:*:*:*:*:*:*:* Versions 12.1.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* Versions 11.5.1 – 11.5.4 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_local_traffic_manager:11.6.1:*:*:*:*:*:*:* Versions 11.6.1 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_local_traffic_manager:12.1.0:*:*:*:*:*:*:* Versions 12.1.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* Versions 11.5.1 – 11.5.4 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_advanced_firewall_manager:11.6.1:*:*:*:*:*:*:* Versions 11.6.1 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_advanced_firewall_manager:12.1.0:*:*:*:*:*:*:* Versions 12.1.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* Versions 11.5.1 – 11.5.4 Vulnerable ·F5
Show 26 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:f5:big-ip_analytics:11.6.1:*:*:*:*:*:*:* | 11.6.1 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_analytics:12.1.0:*:*:*:*:*:*:* | 12.1.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* | 11.5.1 – 11.5.4 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_application_security_manager:11.6.1:*:*:*:*:*:*:* | 11.6.1 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_application_security_manager:12.1.0:*:*:*:*:*:*:* | 12.1.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* | 11.5.1 – 11.5.4 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_domain_name_system:11.6.1:*:*:*:*:*:*:* | 11.6.1 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_domain_name_system:12.1.0:*:*:*:*:*:*:* | 12.1.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* | 11.5.1 – 11.5.4 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_edge_gateway:11.6.1:*:*:*:*:*:*:* | 11.6.1 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_edge_gateway:12.1.0:*:*:*:*:*:*:* | 12.1.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* | 11.5.1 – 11.5.4 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_fraud_protection_service:11.6.1:*:*:*:*:*:*:* | 11.6.1 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_fraud_protection_service:12.1.0:*:*:*:*:*:*:* | 12.1.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* | 11.5.1 – 11.5.4 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_global_traffic_manager:11.6.1:*:*:*:*:*:*:* | 11.6.1 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_global_traffic_manager:12.1.0:*:*:*:*:*:*:* | 12.1.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* | 11.5.1 – 11.5.4 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_link_controller:11.6.1:*:*:*:*:*:*:* | 11.6.1 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_link_controller:12.1.0:*:*:*:*:*:*:* | 12.1.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* | 11.5.1 – 11.5.4 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_policy_enforcement_manager:11.6.1:*:*:*:*:*:*:* | 11.6.1 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_policy_enforcement_manager:12.1.0:*:*:*:*:*:*:* | 12.1.0 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* | 11.5.1 – 11.5.4 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_webaccelerator:11.6.1:*:*:*:*:*:*:* | 11.6.1 | Vulnerable | F5 |
| cpe:2.3:a:f5:big-ip_webaccelerator:12.1.0:*:*:*:*:*:*:* | 12.1.0 | Vulnerable | F5 |
- cpe:2.3:a:f5:big-ip_analytics:11.6.1:*:*:*:*:*:*:* Versions 11.6.1 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_analytics:12.1.0:*:*:*:*:*:*:* Versions 12.1.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* Versions 11.5.1 – 11.5.4 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_application_security_manager:11.6.1:*:*:*:*:*:*:* Versions 11.6.1 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_application_security_manager:12.1.0:*:*:*:*:*:*:* Versions 12.1.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* Versions 11.5.1 – 11.5.4 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_domain_name_system:11.6.1:*:*:*:*:*:*:* Versions 11.6.1 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_domain_name_system:12.1.0:*:*:*:*:*:*:* Versions 12.1.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* Versions 11.5.1 – 11.5.4 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_edge_gateway:11.6.1:*:*:*:*:*:*:* Versions 11.6.1 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_edge_gateway:12.1.0:*:*:*:*:*:*:* Versions 12.1.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* Versions 11.5.1 – 11.5.4 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_fraud_protection_service:11.6.1:*:*:*:*:*:*:* Versions 11.6.1 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_fraud_protection_service:12.1.0:*:*:*:*:*:*:* Versions 12.1.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* Versions 11.5.1 – 11.5.4 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_global_traffic_manager:11.6.1:*:*:*:*:*:*:* Versions 11.6.1 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_global_traffic_manager:12.1.0:*:*:*:*:*:*:* Versions 12.1.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* Versions 11.5.1 – 11.5.4 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_link_controller:11.6.1:*:*:*:*:*:*:* Versions 11.6.1 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_link_controller:12.1.0:*:*:*:*:*:*:* Versions 12.1.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* Versions 11.5.1 – 11.5.4 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_policy_enforcement_manager:11.6.1:*:*:*:*:*:*:* Versions 11.6.1 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_policy_enforcement_manager:12.1.0:*:*:*:*:*:*:* Versions 12.1.0 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* Versions 11.5.1 – 11.5.4 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_webaccelerator:11.6.1:*:*:*:*:*:*:* Versions 11.6.1 Vulnerable ·F5
- cpe:2.3:a:f5:big-ip_webaccelerator:12.1.0:*:*:*:*:*:*:* Versions 12.1.0 Vulnerable ·F5
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-6593
- 2026-10-03 Alias added: GHSA-2g49-gr5q-f4v2
- 2026-10-14 EPSS moved to the 50th–90th percentile
References
More F5 Big-ip Access Policy Manager vulnerabilities
- TI-2023-25230 BIG-IP Configuration utility unauthenticated remote code execution vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2022-01269 Missing authentication in F5 BIG-IP KEVCVSS 3.1CRITICAL 9.8
- TI-2021-05850 Memory corruption in BIG-IP KEVCVSS 3.1CRITICAL 9.8
- TI-2021-05845 Server-side request forgery in BIG-IP; BIG-IQ KEVCVSS 3.1CRITICAL 9.8
- TI-2020-04820 Path traversal in BIG-IP KEVCVSS 3.1CRITICAL 9.8
- TI-2014-05975 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed… KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2019-6593 · CVE Program
- CVE-2019-6593 · NVD
- FIRST EPSS
- GHSA-2g49-gr5q-f4v2 · GitHub Advisory Database · CC BY 4.0
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